Basically, you take the standard 82 Key Deck, then add a detached 20-ish key numpad via a USB cable. This would make the deck keyboards modular, and allow people to put the keypad on the left instead of the right.

We used to sell a 21 key numberpad but they were quite unpopular, especially once we released the full size Deck with built-in numeric pad. Locking the topic as we will not be releasing (or re-releasing) the 21 key model.